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Title:Development of a Controller for Fermentation in the Dry Grind Corn Process
Author(s):Murthy, Ganti Suryanarayana
Doctoral Committee Chair(s):Singh, Vijay
Department / Program:Agricultural Engineering
Discipline:Agricultural Engineering
Degree Granting Institution:University of Illinois at Urbana-Champaign
Subject(s):Engineering, Agricultural
Abstract:The controller maintained glucose concentration of <2.0% w/v in the fermenter throughout the SSF process. Reduced glucose concentrations minimize the osmotic shock to yeast and inhibit the growth of other competing microorganisms. Use of the optimal controller resulted in 50% reduction in glucoamylase amount required for the SSF process under varying operating conditions as compared to the standard SSF process. Optimal controller significantly improved final ethanol concentrations as compared to the conventional process without optimal controller under conditions of temperature and pH disturbances. Use of the optimal controller in conventional dry grind ethanol processes can result in estimated cost savings up to $1 million for a 151 million L/yr (40 million gal/yr) dry grind plant.
Issue Date:2006
Description:150 p.
Thesis (Ph.D.)--University of Illinois at Urbana-Champaign, 2006.
Other Identifier(s):(MiAaPQ)AAI3250299
Date Available in IDEALS:2015-09-28
Date Deposited:2006

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